# FE Electrical & Computer Prep vs Engineering Formulas

FE Electrical & Computer Prep and Engineering Formulas are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. FE Electrical & Computer Prep sells 9 in-app purchases, starting at $9.99 per 7 days and Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 20, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | FE Electrical & Computer Prep | Engineering Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 49 MB | 45 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Exam Prep OU](https://appshunter.io/developer/1689642184) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### FE Electrical & Computer Prep

[App page](https://appshunter.io/ios/app/fe-electrical-and-computer-prep/id6755884621)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electrical & Computer Weekly Access | $9.99 | per 7 days |
| FE Electrical Monthly Full Access | $24.99 | per month |
| Electrical Computer Monthly Access | $24.99 | per month |
| FE Electrical Quarterly Access | $49.99 | per 3 months |
| FE Electrical Quarterly Access | $49.99 | per 3 months |
| FE Electrical Semiannual Access | $75.99 | per 6 months |
| FE Electrical Semiannual Access | $75.99 | per 6 months |
| FE Electrical Annual Full Access | $109.99 | per year |
| FE Electrical Annual Full Access | $109.99 | per year |


### Engineering Formulas

[App page](https://appshunter.io/ios/app/engineering-formulas-engiref/id6758258119)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |
| Lifetime Access | $54.99 | one-time |


## Frequently asked questions

### Is FE Electrical & Computer Prep free?

FE Electrical & Computer Prep is free to download, with in-app purchases available.

### Is Engineering Formulas free?

Engineering Formulas is free to download, with in-app purchases available.

### Do FE Electrical & Computer Prep or Engineering Formulas have ads?

Neither FE Electrical & Computer Prep nor Engineering Formulas shows ads.

### Which is updated more often, FE Electrical & Computer Prep or Engineering Formulas?

FE Electrical & Computer Prep ships an update every 2 months, and Engineering Formulas every 2 months. Most recently, FE Electrical & Computer Prep was updated on September 20, 2026 and Engineering Formulas on August 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*